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Finding the Fourth Proportional to 1,045.73, 1,443.27 and 603.77

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Solution

The fourth proportional to 1,045.73, 1,443.27 and 603.77 is: 833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.73 : 1,443.27 = 603.77 : x
  2. Step 2: Convert to fraction form
    1,045.73/1,443.27 = 603.77/x
  3. Step 3: Cross multiply
    1,045.73x = 1,443.27 × 603.77
  4. Step 4: Simplify right side
    1,045.73x = 871,403.13
  5. Step 5: Solve for x
    x = 871,403.13/1,045.73
  6. Step 6: Final answer
    x = 833.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.